Vehicle structure

A vehicle frame has a first side member, a second side member and a cross-member. The first and second side members extend in a vehicle longitudinal direction. The cross-member extends in a vehicle lateral direction between the first and second side members. The cross-member is fixed to the first side member and the second side member. A mid-portion of the cross-member has a first upright wall and a second upright wall spaced apart from one another defining a hollow area therebetween. A bulkhead is installed within the cross-member between the first upright wall and the second upright wall. The bulkhead has a plurality of surface sections that extend between the first upright wall and the second upright wall and perpendicular to the first upright wall and the second upright wall. The bulkhead is configured to restrict movement of the first upright wall relative to the second upright wall.